|
SSH1 |
SSH2 |
OpenSSH |
Option |
Meaning |
| |
|
 |
-2 |
Use SSH-2 protocol only |
| |
|
|
-4 |
Use IPv4 addresses only |
| |
|
|
-6 |
Use IPv6 addresses only |
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|
|
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-8 |
No effect; simply passed along to rsh on fallback;
signifies 8-bit clean connection |
|
|
|
|
-a |
Disable agent forwarding |
| |
|
|
+a |
Enable agent forwarding |
| |
|
|
-A |
Enable agent forwarding |
|
|
|
|
-c cipher |
Select encryption cipher |
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|
|
|
-C |
Enable compression |
| |
|
|
-C |
Disable compression |
| |
|
|
+C |
Enable compression |
| |
|
|
-d level |
Enable debug messages |
| |
|
|
-d "module=level" |
Enable debug messages per module |
|
|
|
|
-e character |
Set escape character (^ = Ctrl key) |
|
|
|
|
-f |
Fork into background |
| |
|
|
-F filename |
Use other configuration file |
|
|
|
|
-g |
Gateway locally forwarded ports |
| |
|
|
-h |
Print help message |
|
|
|
|
-i filename |
Select identity file |
|
|
|
|
-k |
Disable Kerberos ticket forwarding |
|
|
|
|
-l username |
Remote username |
|
|
|
|
-L port1:host2: port2 |
Local port forwarding |
| |
N |
|
-m algorithm |
Select MAC algorithm |
|
|
|
|
-n |
Redirect stdin from /dev/null |
| |
|
2 |
-N |
Execute no remote command |
|
|
|
|
-o "keyword value" |
Set configuration keyword |
|
|
|
|
-p port |
Select TCP port number |
|
|
|
|
-P |
Use nonprivileged port |
|
|
|
|
-q |
Quiet mode |
|
|
|
|
-R port1:host2: port2 |
Remote port forwarding |
| |
|
|
-s subsystem |
Invoke remote subsystem |
| |
|
|
-S |
No session channel |
|
|
|
|
-t |
Allocate tty |
| |
|
2 |
-T |
Don't allocate tty |
|
|
|
|
-v |
Verbose mode |
|
|
|
|
-V |
Print version number |
|
|
|
|
-x |
Disable X forwarding |
| |
|
|
+x |
Enable X forwarding |
| |
|
|
-X |
Enable X forwarding |
